Immutator

Type Parameters:

R - The type of the result value.

P - The type of the input value.

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
```
@FunctionalInterface
public interface Immutator<R,P>
```
Represent a function that immutate one value into another, possible of different types. CS2030S Lab 5 AY22/23 Semester 1

- Method Summary
  
  All Methods Instance Methods Abstract Methods
  Modifier and Type Method Description
  
  R invoke(P p)
  The functional method to immutate the value p.

- Method Detail
  - invoke
```
R invoke(P p)
```
    The functional method to immutate the value p.
    
    Parameters:
    
    p - The input value.
    
    Returns:
    
    The value after applying the given immutation on p.